Car-truck.



J. ALLISON.

BUCK.

APPLICATION FILED FEB. 25

GAR fr 2 SHEETS-SHEET l,

ent-,gd Mar.14,191 1 Pat ,N fdc 4 wnyssses J. ALLISON.,

CARLTRUCK. i 15.311111011111011 PILEDPEVB. 25, 1910.

Patented Mar. 14,1911.

y .wnvnesses 1072i@ w1 UNITED STATES dPATENT OFFICE.

MENTS, 'ro a confort-aaron or PENNSYLVANIA.

can-Tanon.

' sicmmoa'ofimrsman' Patented Mar. '14, 1911.

. applicants :nea Tehran-yes, 1910. semi nu. 545,798.

To all whom 'it may conccm: A

Be it known that II, JOHN- .imsoit, a.

- resident of Dravosburg, in "-the. count -of .Allegheny and State of Pennsylvania, ave

invented. certain-new and.' useful Ira rovements in Car-.Trucksfof 4which the folowing is a specification.

frame. 1-

An object-of my invention-:letti provide a new and improved car-truck or truckframe, particularly designed forpassengcr cars, preferably composed' lof cast-metal pieces or members of noyel forni and constrnctiong 'disposed and Joined together to provide a strong and durable car truck.

In the accompanying drawings, which illustrate an application of my invention, g-ure 1 is a top plan of a truck-frame'emying myljinvention; Fig. 2 a part end view and apart sectional view, the section being taken on line II-II of Fig. 1; Fig. 3,

a part elevational view and a part sectional view' taken'on line III- III of Fig. 1; and

Fig. 4', a. perspective view of a portion of one dfthe Wlleel-pieoes.-

Referring to the drawings, 2 designate the wheel-pieces of the truck. These pieces as illustrated and as preferred eac comprises an integral lcastrnetal piece .of invertedU-sl1ape in cross section, with each pieoef-formed on its inner facewith lugs or bosses 3 designed respectively to engage a' depending flange W4 'of 'the transoms 5. Transoms 5 are secured to the wheel pieces 2 by rivetsl a's is usual a'n as. clearly s hmvn by the drawings, but by the provisior'- f the' lugs 3 on the wheel pieces I'am enabled to relieve` the securing rivets of considerable strain andv thereby provide a much stronger connection betweenj..` said transoms and wheel-pieces than hasuheretofore been'the case The ends of m'einbers 2 are connected 'bytruck-rame endmenibers 6 and are intermediately oonnected--by inner transoms 7. Transom 7 and transom 5 ofA` each pair are spaced.- apart throughout rtheir entire designate the members of the;A

truck bo ster ,and 9 the truck center-platee' A characteristic feature .of the ,presenti iii-t vention is the manner of and means fdr sup-f porting the center-plate. As illust-rated I. provide acasting comprising two diagonal and intersecting members 10 with each member' 10 provided at its endswvith a platemember 11 adapted to be secured to the respective bolster-members 81 e In addition to the partsmentioned7 I pro vide axle'safety beam members 12 having dat engaging members 13 designed tov interlock "vith or engage' the cross-members or transoms of the truck-frame, to' which they are secured by rivets as particularly shown inFig.3.` 'i

All of the parts, pieces or members enterl such a nature that they can be made ofc'astmetal, preferably cast-steel, and a number of the parts are duplicates. The parts may be easily assembled and readily secured toassembled and secured they roduce a. strong, durable, and efficient truc fully answering service requirements.

The truck illustrated is a six-wheeled truck designed for passenger cars and pro vided with equalizing-bar spring caps 14, and other Well known elements employed class.

What I claim is:

engaging lugs on the inner face thereof, of 4separable end-pieces extending from one wheel-piece to the other and )oming the,

soms, connecting the wheel-pieces, a transom of each pair having a flange disposed in Contact 'with the inner face ofa. wheellpiece and abutting against a lug thereof, and a bolster-member located between each pair of transoms, 2. In acar-truc`k frame construction, the combination 4with wheel-pieces each having lugs formed integral with the inne-r face thereof, of separable end-pieces extending from .one wheel-piecetc the other and joining the ends thereof, two pairs of separable .transoms-oonnecti the wl1eel'p icoes, a xtransomrof eaclrnat'thaving a flange dis- -posed in contact the inner face ofthe wheel-'.pieceA and abutting against a lug each pair'of transo'ms, a truck. center-plate,

invthe. construction of car trucks of this and `a:.-' asting comprising two diagonal' PITTSBURGH EQUIPMENT CQMPANY, 0F PITTSBRG, PENNSYLVANIA,

ing 'into the formation of vmy truck are of gether by rivets or other means and when so .r

1. In' a car-trnek frame construction, the combination. with Wheel-'pieces formed with.

ends thereof, two pairs of separable trani thereof, a bolster member Vlocated between wheelieee `to the other and ends -t iereof, -twovpai'rs of separable tram a. tran` combination with wheel-pieces each members crossing each other underthe cenenplate and connecting the l bolster mem- 3. In s. car-truck frame constinotion,4 the. formed 'with `lugs on the in ner face thereof, ofsepf arable' end-pieces f extending from one joining' the the.inner face of the wheeL combination with whce1-pieoes,'of separable* 'end-'pieces extending from one wheel-piece to the otherand joining the ,ends thereof,

two pairs of separable transoms connecting 1 the whee1pieces,`the members -of each pair being'spaced apart throughout their 1egths,

a".bolste'r member located' between each pair ofA transom, casting com rising erossin .eac other underpthe center-plate, separab e safety beam members joining the end-pieces and the outer transo'msznnd arable safety'4 beam members joining tie .inner transoms.

In testimony whereof I aix my signature in presence of two witnesses.

JOHN ALLIsoN.

- Witnesses:

A. C. WAY, t G. DooLrrrLn.

., tr\ck center-plate, af two diagonal. members 

